What are signs of a moderate allergic reaction?

A moderate allergic reaction typically presents with symptoms that indicate more pronounced physiological changes compared to mild reactions but are not as severe as those seen in a severe allergic reaction. Mild airway swelling and bronchospasm represent a reasonable level of concern, as they indicate that the body is responding to an allergen in a way that can affect breathing. This response can lead to difficulty breathing, wheezing, or a feeling of tightness in the chest, which are significant enough to warrant immediate attention but not immediately life-threatening if recognized and managed.

The other choices reflect varying degrees of allergic symptoms. While a localized rash and itching can occur in allergic reactions, they are characteristic of milder responses rather than moderate ones. Severe abdominal cramps could suggest a more serious reaction like anaphylaxis or a gastrointestinal response, which goes beyond what's considered moderate. Excessive sneezing typically aligns with mild allergic reactions, often involving less severity than what's classified as moderate. Therefore, the signs of a moderate allergic reaction align best with the symptoms of mild airway swelling and bronchospasm.